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Conclusions and Suggestions for Future Work This chapter has shown that niche restriction at the levels of host species, host po ...
Niche Restriction and Mate Finding in Vertebrate Hosts 191 Fig. 9.8. A. Metazoan endoparasites of the marine teleost fishAcantho ...
interspecific hybridization. Niche restriction must have the effect of facilitating contact between mating partners, although ev ...
Ashton, F.T., Li, J. and Schad, G.A. (1999) Chemo- and thermosensory neurons: structure and function in animal parasitic nematod ...
Gutiérrez, P.A. and Martorelli, S.R. (1999) Niche preferences and spatial distribution of Monogenea on the gills ofPimelodus mac ...
MacKenzie, K. and Liversidge, J.M. (1975) Some aspects of the biology of the cercaria and metacercaria of Stepanostomum baccatum ...
Rohde, K. (1973) Structure and development ofLobatostoma manterisp. nov. (Trematoda, Aspidogastrea) from the Great Barrier Reef, ...
(Rutilus rutilusL.): history and present ecology.International Journal for Parasitology30, 1077–1088. Sousa, W.P. (1994) Pattern ...
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Parasite Sex Determination Parasite Sex Determination 10 R.E.L. Paul Biochimie et Biologie Moléculaire des Insectes, Institut Pa ...
more evident than in the exploitation of hosts by their parasites. For para- sites, the habitat, for at least some part of its l ...
interactions, which results in differential fitness for both hosts and parasites (for a review, see Ladle, 1992). Sex will incre ...
Gonochorists or Hermaphrodites For those parasites where sexual reproduction is obligatory, mating can be assured by producing b ...
fixed for a given habitat or there may be facultative adjustment by the foundress according to the precise conditions encountere ...
just males), there is weak selection for all individuals to invest equally in males and females and population-genetic models ha ...
e.g. when solitary parasitoids parasitize gregarious hosts. The sex ratio is found to be positively correlated with the number o ...
LMC and mating assurance Under extreme inbreeding, when there is a single foundress, LMC would predict a very female-biased sex ...
as some parasitoids, the foundress can facultatively determine its off- spring’s sex, using cues (host size, superparasitism). I ...
strategy may be appropriate. To what extent sex determination can be adaptive when faced with such uncertainty will be addressed ...
of or shortly after commitment to becoming a sexual form (Bruceet al., 1990; Smithet al., 2000). LMC and Sex Determination Sever ...
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